<template>
  <div class="icons">
    <swiper :options="swiperOption">
      <swiper-slide v-for="(page,index) in pages" :key="index" >
        <div class="icon" v-for="item in page" :key="item.id">
          <div class="icon-img">
            <img class="icon-img-content" :src="item.imgUrl" alt="">
          </div>
          <p class="icon-desc">{{item.desc}}</p>
        </div>
      </swiper-slide>
    </swiper>

  </div>
</template>

<script>
  export default {
    name: "Home-Icons",
    data () {
      return {
        swiperOption:{
          autoplay: false
        }
      }
    },
    props: {
      list: {
        type: Array,
        default: []
      }
    },
    computed: {
      pages() {
        const pages = [];
        this.list.forEach((item, index) => {
          const page = Math.floor(index / 8);// 一页八条数据，看下是要分在第几页
          // 生成的是一个二维数组
          if (!pages[page]) {
            pages[page] = []
          }
          pages[page].push(item)
        });
        return pages
      }
    }
  }
</script>

<style scoped lang="stylus">
  @import '~styles/varibles.styl'
  @import '~styles/mixins.styl'
  .icons >>> .swiper-container
    width 100%
    height 0
    padding-bottom 50%
    overflow hidden

  .icons
    margin-top .1rem
    .icon
      height 0
      overflow hidden
      width 25%
      float left
      padding-bottom 25%
      position relative
      .icon-img
        box-sizing border-box
        padding .1rem
        position absolute
        top 0
        left 0
        right 0
        bottom .44rem
        .icon-img-content
          height 100%
          display block
          margin 0 auto
      .icon-desc
        position absolute
        left 0
        right 0
        bottom 0
        height .44rem
        line-height .44rem
        color $darkTextColor
        text-align center
        ellipsis()

  // stylus函数 字体超过显示...
</style>
